English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/11211
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Oviposition avoidance of parasitized aphid colonies by the syrphid predator Episyrphus balteatus mediated by different cues

AuthorsPineda, A.; Morales, I.; Marcos-García, M. A.; Fereres, Alberto
KeywordsEpisyrphus balteatus
Aphidius colemani
Myzus persicae
Sweet pepper
Intraguild predation
Oviposition preference
Syrphidae
Issue DateSep-2007
PublisherElsevier
CitationBiological Control; volume 42, Issue 3, September 2007, Pages 274-280
AbstractOviposition decisions made by members of a guild of natural enemies can have evolved to avoid intraguild predation, potentially avoiding the disruption of the extraguild prey control. We have studied the oviposition preference of the aphidophagous predator Episyrphus balteatus De Geer (Diptera: Syrphidae) within colonies of Myzus persicae Sulzer (Hemiptera: Aphididae) in the presence of two developmental stages of the aphid parasitoid Aphidius colemani Viereck (Hymenoptera: Aphidiidae). Results from a greenhouse choice experiment showed that E. balteatus females lay significantly fewer eggs in colonies with mummified aphids than in unparasitized colonies. Colonies of parasitized, but not yet mummified did not contain significantly fewer eggs than colonies with unparasitized aphids. In three no-choice experiments, we assessed stimuli coming from aphid honeydew, from the aphids themselves and also from extracts of the aphid bodies, and all of these stimuli mediate the discrimination of mummified aphids from healthy aphids. To a lesser extent these stimuli also contribute to the discrimination against aphids that are parasitized but not yet mummified. These results suggest that the effects of these two species could be complementary for the control of M. persicae, since the species that acts as an intraguild predator, E. balteatus, avoids ovipositing on aphid colonies parasitized by the intraguild prey, A. colemani.
Publisher version (URL)http://dx.doi.org/10.1016/j.biocontrol.2007.05.017
URIhttp://hdl.handle.net/10261/11211
DOIhttp://dx.doi.org/10.1016/j.biocontrol.2007.05.017
ISSN1049-9644
Appears in Collections:(ICA) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.